how much psi....

Hey About how much psi can be run w/ the stock computer (87tc) and 35lb injectors w/ ported e6, ported upper and lower intake, ported heads... Any guesses at the most psi that can be reached w/o damage to the motor?

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Pat
[email protected]
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1987 Turbo Coupe
Mod's -
~ K&N 6" Cone mounted in front of radiator, JVC Kameleon CD Player, New Kenwood 3 1/2" and 5 1/4" speakers, New Boss Audio 6x8s, Blackout Lights in front, Gillis Valve set at 17 psi , Single gauge A-Pillar Pod w/ boost gauge, 2 1/2" dual exhaust from ATR but stock downpipe and Cat, Centerforce clutch, 2 Kicker Comp 12's on a sealed box w/ 600 watt kenwood amp, dynamatt trunk kit... Have a hi-flo cat just waiting for the 3" downpipe to come in to put them both on, Also most likely putting Cobra R rims on before spring...

Pat:

I assume it still has the IHI turbo. If so, IMHO I'd keep the boost around 17-18lbs MAX or so.

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Dan Eaves
88TC 5spd, Crower 5.5" Sportsman Rods, Short Wiseco Pistons bored .030" Over, Ported Head with Polished Combustion Chambers, Gutted & Polished Upper, Ported & Polished Lower, Polished T/B, Ported E6, SVO T3 .63AR Turbo, Bosch Bypass Valve, 3" DP w/No Cat, 2 1/2" DynoMax single cat back w/DynoMax Super Turbo Muffler, RR Cam, K&N in Fenderwell, Gillis Boost Valve, Centerforce I Clutch, Removed A/C, Polished Wheels, Polished Valve Cover, Polished Crank and W/P Pulleys, Walbro 255LPH HP Pump, Kirban Adj FPR, and the DAMN Heater Core is new too !

NATO MEMBER (Vice Chairman...if it's a vice...I deal with it)

o sorry bout that, say w/ a t3/43 turbo or any other turbo that would max out the fuel flow of the 35lb
injectors


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Pat
[email protected]
~~~~~~~~~~~~~~~~~~~~~~~~
1987 Turbo Coupe
Mod's -
~ K&N 6" Cone mounted in front of radiator, JVC Kameleon CD Player, New Kenwood 3 1/2" and 5 1/4" speakers, New Boss Audio 6x8s, Blackout Lights in front, Gillis Valve set at 17 psi , Single gauge A-Pillar Pod w/ boost gauge, 2 1/2" dual exhaust from ATR but stock downpipe and Cat, Centerforce clutch, 2 Kicker Comp 12's on a sealed box w/ 600 watt kenwood amp, dynamatt trunk kit... Have a hi-flo cat just waiting for the 3" downpipe to come in to put them both on, Also most likely putting Cobra R rims on before spring...

Boost is not what will max out the injectors, air flow is.

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NATO Member
88 TC X 2, 86 SVO, Main TC with K&N, 3"DP to 2.5"duals through Dynamax, Ric valve at 17+ and disconnected KS. Elite Bodega 16" chrome wheels. Autometer pod w/ A/F and Vac/boost gauges.140 mph Motorsports Speedo New engine: Total Seal rings and TRW pistons, ported and polished head w/ cc'd chambers,1.59"exhausts, SS valves, gutted upper, knife edged lower, A-230 cam, Race Engineering Adj Cam Sprocket, Crowlers, ARP head studs, and rod bolts. Walbro 255 HP pump and Kirban adj FPR, T-3. Centerforce II, KB subs and jack rails.

I was wondering about this too, but in a different respect. Say everything else is stock, what is the most boost pressure I could run safely with a larger turbo. I don't want to blow the head gasket or any other seals, ya see.

Kev

Kev, not trying to be evasive. The answer is dependent on the efficency of the turbo at the pressure level and speed (of the turbo) you want it to run, grade of gasoline, efficency of the intercooler and a few other things. Probably in the 20-23 psi on pump high test with an IC

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NATO Member
88 TC X 2, 86 SVO, Main TC with K&N, 3"DP to 2.5"duals through Dynamax, Ric valve at 17+ and disconnected KS. Elite Bodega 16" chrome wheels. Autometer pod w/ A/F and Vac/boost gauges.140 mph Motorsports Speedo New engine: Total Seal rings and TRW pistons, ported and polished head w/ cc'd chambers,1.59"exhausts, SS valves, gutted upper, knife edged lower, A-230 cam, Race Engineering Adj Cam Sprocket, Crowlers, ARP head studs, and rod bolts. Walbro 255 HP pump and Kirban adj FPR, T-3. Centerforce II, KB subs and jack rails.